cef/libcef/renderer/render_message_filter.cc

77 lines
2.5 KiB
C++

/// Copyright (c) 2012 The Chromium Embedded Framework Authors.
// Portions (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "libcef/renderer/render_message_filter.h"
#include "libcef/common/cef_messages.h"
#include "libcef/renderer/thread_util.h"
#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "base/task/post_task.h"
#include "chrome/common/render_messages.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/web/web_security_policy.h"
#include "url/gurl.h"
#include "url/url_util.h"
using content::BrowserThread;
CefRenderMessageFilter::CefRenderMessageFilter() : channel_(NULL) {}
CefRenderMessageFilter::~CefRenderMessageFilter() {}
void CefRenderMessageFilter::OnFilterAdded(IPC::Channel* channel) {
channel_ = channel;
}
void CefRenderMessageFilter::OnFilterRemoved() {
channel_ = nullptr;
}
bool CefRenderMessageFilter::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(CefRenderMessageFilter, message)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_IsCrashReportingEnabled,
OnIsCrashReportingEnabled)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
// Based on BrowserMessageFilter::Send.
bool CefRenderMessageFilter::Send(IPC::Message* message) {
if (message->is_sync()) {
// We don't support sending synchronous messages from the browser. If we
// really needed it, we can make this class derive from SyncMessageFilter
// but it seems better to not allow sending synchronous messages from the
// browser, since it might allow a corrupt/malicious renderer to hang us.
NOTREACHED() << "Can't send sync message through CefRenderMessageFilter!";
return false;
}
if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
base::PostTaskWithTraits(
FROM_HERE, {content::BrowserThread::IO},
base::Bind(base::IgnoreResult(&CefRenderMessageFilter::Send), this,
message));
return true;
}
if (channel_)
return channel_->Send(message);
delete message;
return false;
}
void CefRenderMessageFilter::OnIsCrashReportingEnabled(bool* enabled) {
// TODO(cef): Explore whether it's useful for CEF clients to report when crash
// reporting is enabled.
*enabled = false;
}